Q. How do you prevent a component from re-rendering?

  • (A) Using shouldComponentUpdate in class components
  • (B) Using useEffect with empty dependencies
  • (C) Using React.memo for functional components
  • (D) All of the above
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✅ Correct Answer: (D) All of the above
Explanation: All listed techniques help in preventing unnecessary re-renders in various ways.

Published by Mr. Dubey ⭐ 110.47K Points at 08-Jun-2025 03:20 pm in React Js

Explanation by: Mr. Dubey
All listed techniques help in preventing unnecessary re-renders in various ways.

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